There are some Unsolved Problems in the following categories:

Cars (23354) New *
Cellular Phones (23718)
Digital Cameras (31592)

DVD Players (19668)
MP3 and Dig. (16188)
PC Desktops (14315)

2 Way Radios (166)
Air Compressors (8)
Air Conditioners (3552)
Air Drills / Dri. (2)
Air Hammers (1)
Air Impact Wre. (1)
Air Purifiers (296)
Air Spray Guns (3)
Amplifiers and. (133)
Answering Mac. (463)
Audio and Vid. (127)
Audio Shelf Sys. (1389)
Baby Carriers (28)
Back Massagers (1)
Barcode Scanners (322)
Barebone Systems (1150)
Bathtubs / Whi. (2)
Bench Grinders (1)
Binoculars (237)
Blenders (250)
Boomboxes (283)
Bread Machines (382)
Breaker Hammers (1)
Bridges (35)
Business and Pro. (530)
Calculators (766)
Camcorders (6480)
Camera Lenses (275)
Car Amplifiers (348)
Car Audio and. (176)
Car CD Changers (705)
Car Equalizers (38)
Car Monitors (277)
Car Seats (511)
Car Speakers and. (4786)
Car Video Pla. (1523)
Cars (23354) New *
CB Radios (109)
CD and DVD Bur. (925)
CD Players (943)
CD ROM Drives (217)
Cellular Acc. (37)
Cellular Phones (23718)
Chain Saws (12)
Chippers and Shr. (1)
Circular Saws (9)
Classic Con. (3)
Clock Radios (536)
Coffee and Esp. (1687)
Coffee Grinders (142)
Computer Games (36)
Computer Spe. (458)
Concentrator... (31)
Conferencing Sta. (134)
Copiers (447)
Cribs and Bas. (384)
Crock Pots and. (284)
Deep Fryers (144)
Dehumidifiers (436)
Digital Cam. (54)
Digital Cameras (31592)
Dimmers (2)
Dishwashers (7204)
Drills (18)
Drills / Drivers (18)
Drive Cases (108)
Drivers & Pul. (3)
Dryers (2982)
DS Games (15)
DVD Drives (227)
DVD Players (19668)
Education and. (117)
EKG / ECG Mac. (1)
Electric Fans (562)
Electric Kettles (139)
Electric Pow. (15)
Electric Ski. (70)
Electronic Dic. (155)
Electronic Key. (1)
Equalizers (40)
Expansion Mod. (59)
Faucets and Val. (2)
Fax Machines (3090)
Film Cameras (691)
Firewalls (87)
Flashes (261)
Flashlights (13)
Flat Panel TV (11027)

Floppy Drives (52)
Food Processors (314)
Freezers (244)
Game Boy Adv. (7)
Gamecube Games (3)
Glue Guns (1)
GPS Accessories (42)
GPS Devices (9825)
Graphic Tablets (333)
Graphics Cards (133)
Graphics Pub. (888)
Grills and Smo. (349)
Grinders (1)
Hand Held Mas. (2)
Hard Drives (1037)
Headphones (216)
Headsets (1891)
Heart Rate Mon. (2)
Heaters (510)
Hedge Trimmers (4)
Home and Lif. (132)
Home Theater Spe. (744)
Home Theater Sys. (3187)
Humidifiers (219)
Ice Cream Makers (173)
In Dash Rec. (2599)
Indoor Gri. (170)
Input Adapters (566)
Instant Cameras (1)
Internet and Com. (222)
IP Phones (225)
Irons (383)
Jig Saws (2)
Jointers (1)
Juicers (162)
Keyboards and. (1211)
Kitchen Cooktops (367)
Kitchen Hoods (195)
Kitchen Ranges (5361)
KVM Switches (181)
Laminate Tri. (1)
Laptop Acc. (79)
Lawn Tri. (71)
Leaf Blowers (7)
Lens Converters (5)
Locks (9)
Mac Desktops (25)
Mac Laptops (18)
Marine Ele. (78)
Measurement Too. (5)
Microphones (307)
Microscopes (21)
Microwave Ovens (1547)
Mini Disc Pla. (54)
Mixers (309)
Modems (799)
Monitors (2865)
Motherboards (323)
MP3 Accessories (86)
MP3 and Dig. (16188)
Multimedia Pro. (199)
Multimedia Pro. (1357)
Musical Ins. (25)
Nail Guns (1)
Network Adapters (71)
Network Cables (29)
Network Man. (90)
Network Storage (135)
Network Ter. (135)
Networking Hub. (108)
Networking Rep. (15)
Night Vision (86)
Nintendo 64 Gam. (4)
Nintendo WII Gam. (7)
Operating Sys. (119)
Other Net. (153)
Ovens (2221)
PC Cases (38)
PC Desktops (14315)
PC Gaming Dev. (503)
PC Laptops (1467)
PDAs (9657)
Personal Aud. (145)
Personal Cas. (39)
Personal CD Pla. (305)
Personal Radios (248)
Phones (16236)
Photography Acc. (27)