Acrobat reader 7 not liking commands in the URL

Hi,

I just recently discovered that I could tell the reader to turn off toolbars and such using the querystring

It works perfectly in AR9 but gives me an error in AR7to the effect that the command is illegal.

I can post the exact error, but I need to be at a windows PC which I will be on Monday

Perhaps somone already knows the issue?

Thanks