1 The screen has frozen/stopped.
2 I forgot to save/store the document.
3 I think I've got a virus/germ because my computer is very slow.
4 I can't connect/join to the Internet.
5 My Internet link/connection is really slow.
6 I can't transfer/download this music as the link isn't working.
7 The printer has got out/run out of ink.
8 I've spilt/poured something on the keyboard.
9 The hard/tough disk is full.
10 I can't get this DVD to drive/work.
11 I've deleted/wiped a file by mistake.