why does my viewer keep freezing?

[JustOnceAgain]

Every viewer I try keeps freezing or crashing and I have nothing active - please help me.

[Echo Hermit]

Please check your graphics card drivers are up to date.

Also ensure you are on a hard wired connection wherever possible.  The freezing may be indicative of an interruption in your internet service, so do a ping test.

Carry out some basic computer maintenance also; remove any surplus programs or files, do a disk cleanup and defragment.