VB.NET: VS 2005 IDE: Find (Ctrl-F) extremely slow in specific cases?!?

[Joergen Bech]

I have a 9,000-line usercontrol. Sometimes when I hit Ctrl-F, it takes
a long time before the Find/Replace dialog pops up. And when it
appears, it is not very responsive.

After some trial and error I think I have found some method to the
madness:

If the cursor is placed outside any methods or functions (i.e. in the
declarations area), there are no problems.

If the cursor is on a line near the end of a method or function, no
problems either.

If the cursor is anywhere in a method or function located at the
end of the document, still no problems.

BUT: If the cursor is on a line near the start of a big method or
function located at the top of the document (in this case a
9,000-line usercontrol), it takes quite a few seconds for the
dialog to appear - and it is painfully slow to work with.

At least now I know how to avoid it, but the question is:

Is this correctly observed? And is there anything I can do
to fix it so I do not have to think about where I put the cursor
every time I invoke the Find/Replace dialog?

TIA,

Joergen Bech