USB Interface help

Recently my interface seems to have broken, for no particular reason, that I can identify. I am using a lexicon Alpha interface, but it seems fairly generic. Does anybody know a possible diagnosis/know of a similar issue from the past.

Essentially it just isn't doing anything. When I plug into a computer (And I've tried a few) it is inactive. No light comes on, no function occurs.

The only thing I could see as a potential issue is the actual USB transmission port, as that's where power is received, as well as data, however all prongs seem to be lined up fine. In the past one of the went slightly crooked but I corrected that with some tweezers, and it worked fine.

Have you checked the fuse?

Nope, how would I go about doing that?

You should always spend a little extra cash for something that you will like, and will be around a while.

I use a Behringer Xenyx 1204USB. Its tough, never overheats, and has served me well.

Yeah, I'm gonna get something a little better if the alpha can't be revived. Any recommendations for a 1/2 mic line input interface == £100/>£100. I'm thinking maybe focusrite. It's annoying coz I've been saving up for a new guitar this year.