AutoCAD 'hanging' when zooming

Hi

any one Help me out to autocad hanging problem.my Computer Configuration is Good.but Why autocad is hang.when i am using any command like move or zoom in out........?

Computer Configuration

Pentium 4 3.00 GHz Processor

1 GB Ram

Thanks

have you purged it?... and what size is it?

Dear Strix .i have purg many time. but no any good respons..file size is 35kb.

and have you done a REGEN?

Is it only one drg this happens on?

yes dear i have done a Regen.mostly when i use MOVE and opening Layer command option then CAD is Hang and i can't access cad and any key....then last option i am press ctrl+alt Delete and Exit CAD program.......

many many Thanks to reply me.

Try an AUDIT on the drawing.