I bought this HDMI switcher from Monoprice:

4X1 Enhanced 1.3b Certified HDMI Switch with built-in Equalizer and Remote (REV.3.0)

It worked fine for 1 month and now it started giving me problems. This is my setup:

Westinghouse 1080p HD LCD
Xbox 360 Elite
Playstation 3
Tivo HD

Recently whenever I try to use something on inputs 2 -4 on the switcher the TV screen blinks. The picture comes out fine except for the blinking every 5 seconds. When I connect the components directly to the TV they work fine. Any ideas?

It sounds like the switch is bad.

yeah, it seems there is problem with switcher now.

if you want a good quality switcher check out http://www.lenexpo-electronics.com/4x1-Atlona-HDMI-Switch-HDMI-1.3-p-17385.html