Block Insertation size ?? HELP

I am using Autocad 2006 and I am having a problem when inserting blocks.. Any block that I insert into Model Space comes in very BIG all my settings on the insert popup are ok. Is there another setting somewhere that would cause these blocks to come in very large scale?

Check the units of the drawings vs. the block. There may be a conversion going on that makes the block appear too large.

But how? I checked the DDUNITS and they are alright?

Format>Units

I checked that already. It is all normal. It must be some kind of other setting....Any ideas???

Can you provide a sample?

Ok I figured this much out. My blocks are coming in 39.3 times bigger than what they should. This just happpens to be the conversion factor for metric..... So how do I change this?