Items price list updation using Import from Excel shut down application

hi all,

In import from excel we selected columns item code,

price list code,price according to price list,price list.

Tick update existing records.

We also prepared an excel sheet & fill it with datas

in the above format & converted text field(tab delimited).

When we try to update prices in item master price list using

import from excel a dialog box appers with a message

Application has a problem diagnostic file(dump file) was created.Please Contact Support & attach diagnostic file,when we click ok in dialog box application shut down.We are able to import item master without any problem.

We are using live database & problem occurs only on it.

But in demo database we successfully updated items price list.

What could be problem ?

Is there is any alternative solution ?

Expecting you all valuable reply.

Thanks & Regards,

Jeyakanthan