Trouble selecting Excel cells

[pandigel]

Occasionally Excel 2000 goes into a curious mode where cells selected are coloured light blue, but can't be copied or changed. The number of cells selected can be changed, but nothing can be done with them. I can't change to another worksheet. All I can do is quit without saving (therefore losing work) and restart my computer.
Can anyone shed light on this?

 

[ETID]

Check to see if your scroll lock is on...or if you have a wheel mouse, you may have "clicked" the wheel instead of rolling it.

 

[Dreamboat]

Ah...here's some light:

This occurs for TWO reasons.

One is what ETID said: The wheel on the wheel mouse is clicked.

Two is that you need your hard drive cleaned up. That's right. And here's the instructions:

http://www.theofficeexperts.com/cleanyourpc.htm

Excel VBA Certification is Finally Here!

http://www.vbaexpress.com/forum