There are some Unsolved Problems in the following categories:

Cellular Phones (10839)
Digital Cameras (13912)
DVD Players (10347)
Flat Panel TV (7064)
MP3 and Dig. (10661)

PC Desktops (3234)
PC Laptops (460)
PDAs (5026)
Phones (7222)
Printers (10157)

2 Way Radios (123)
Air Conditioners (530)
Air Purifiers (177)
Amplifiers and. (70)
Answering Mac. (280)
Audio and Vid. (64)
Audio Shelf Sys. (898)
Baby Carriers (11)
Barcode Scanners (199)
Barebone Systems (1143)
Binoculars (146)
Blenders (167)
Boomboxes (203)
Bread Machines (234)
Bridges (13)
Business and Pro. (226)
Calculators (520)
Camcorders (4745)
Camera Lenses (181)
Car Amplifiers (263)
Car CD Changers (529)
Car Equalizers (33)
Car Monitors (243)
Car Seats (364)
Car Speakers and. (1009)
Car Video Pla. (1030)
CB Radios (88)
CD and DVD Bur. (623)
CD Players (633)
CD ROM Drives (139)
Cellular Phones (10839)
Clock Radios (355)
Coffee and Esp. (1163)
Coffee Grinders (92)
Computer Spe. (191)
Concentrator... (22)
Conferencing Sta. (92)
Copiers (258)
Cribs and Bas. (194)
Crock Pots and. (178)
Deep Fryers (117)
Dehumidifiers (167)
Digital Cameras (13912)
Dishwashers (3534)
Drive Cases (71)
Dryers (1129)
DVD Drives (142)
DVD Players (10347)
Education and. (57)
Electric Fans (238)
Electric Kettles (102)
Electric Ski. (34)
Electronic Dic. (112)
Equalizers (28)
Expansion Mod. (43)
Fax Machines (1111)
Film Cameras (484)
Firewalls (46)
Flashes (189)
Flat Panel TV (7064)
Floppy Drives (30)
Food Processors (185)

Freezers (62)
GPS Devices (3693)
Graphic Tablets (236)
Graphics Cards (52)
Graphics Pub. (538)
Grills and Smo. (142)
Hard Drives (438)
Headphones (139)
Headsets (1304)
Heaters (335)
Home and Lif. (73)
Home Theater Spe. (497)
Home Theater Sys. (2243)
Humidifiers (189)
Ice Cream Makers (76)
In Dash Rec. (1768)
Indoor Gri. (107)
Input Adapters (371)
Internet and Com. (107)
IP Phones (120)
Irons (184)
Juicers (104)
Keyboards and. (727)
Kitchen Cooktops (252)
Kitchen Hoods (147)
Kitchen Ranges (2499)
KVM Switches (86)
Mac Desktops (16)
Mac Laptops (13)
Marine Ele. (2)
Microphones (209)
Microscopes (12)
Microwave Ovens (684)
Mini Disc Pla. (31)
Mixers (203)
Modems (404)
Monitors (1755)
Motherboards (67)
MP3 and Dig. (10661)
Multimedia Pro. (132)
Multimedia Pro. (753)
Network Adapters (19)
Network Cables (19)
Network Man. (57)
Network Storage (95)
Network Ter. (73)
Networking Hub. (31)
Networking Rep. (8)
Night Vision (76)
Operating Sys. (29)
Other Net. (101)
Ovens (1433)
PC Cases (20)
PC Desktops (3234)
PC Gaming Dev. (356)
PC Laptops (460)
PDAs (5026)
Personal Aud. (111)
Personal Cas. (19)
Personal CD Pla. (210)
Personal Radios (181)
Phones (7222)