For some strange reason, Flash MX crashes if the actionscript lines in expert mode have more than 60 characters in it, and starts to show strange characters from the 53rd character onwards.

I tried reinstalling, removing every other macromedia program, using another font for the editor but nothing seems to help.

I used the exact same version of Flash on another computer and it worked fine.

System Specs:
P4
764 MB DDR
WinXP Home SP1