My Av & Clothes have turned black

Hi My Av has turned black - my skin is missing, my eyes have gone black (no white bits) and the clothing I'm wearing has gone black (apart from my attachments which are fine)

I have already un-installed second life and re-installed twice.

I have changed my shape twice.
I have put on diffeernt clothes several times
I have changed my skin and my head seems to be fine - the rest of the body not so much.
I have gone into appearance and the windows where you see a preview of what the av will look like when u move the sliders - they are like a snowy tv screen that has no signal... I have tried a couple of times - and before it was all rainbow colours...

I also try re-baking a few times - not sure whats going on!!

Can someone help??
Thanks so much!

Emmerald.

P.S. I'm running Vista (if thats the problem) - but haven't had any issues up until now!

This used to happen when people were running SL on two screens. If this is so, then drag the window to your main screen and it should fix itself after a relog.

Oh My Gosh Do I feel like a silly goat!! If thats all it was!! HAHAHA!! Yes thank you so so much the problem is fixed now!!

I have tried what was suggested but I am still having an issue with everything being black.
Everything shows up in the appearance pose just fine now, but when I exit editing my head and legs are still not visible.
I have noticed when changeing outfits & takeing things off through the inventory that either the gamer boy-bold is still being worn or the gamer girl-bolg is still being worn and it will not let me detach on remove the item from my av.
So a stacking is occuring that causes my head and legs to become this way.
I'm new so I know I have gotta be missing something.

Any suggestion would be great please.

My RL company is useing SL to do training and I'm the go to person.
So this has become a huge obsticle and stress. >.>