Hi, ok so my bitcoin stopped working, didnt do anything and it just stopped working.

when ever i tried to open it it just says bitcoin.exe has stopped working

so i backed up my wallet.dat and uninstalled then reinstalled it, still not working

so i installed it on another computer and copied over my wallet.dat and it shows all my transactions and stuff but balance = 0.0 and all transactions are 0/unconfirmed and grayed out.

1, is it possible to fix the bitcoin install on my computer

2, when i moved my wallet.dat to another computer did i lose my bitcoins, whats going on, do they just need time to reconfirm?

THANKS!