Spaces Getting Removed

I've noticed this little glitch, and I have a feeling it has something to do with my PC (Win7), browser (IE9), or browsers settings (default).
Sometimes when I post on GS, wether it's the forums, my blog, comments, etc., a few spaces get removed.

"For example, I would post this."

Then it might look like this:

"For example,Iwould post this."

It usually only happens for larger posts like blogs. I assure you they aren't spelling mistakes.
Sometimes, when I go to edit one part of a blog, another sentance gets bunched up like that somewhere else on the blog when I post it.

Does anyone elsehave this problem? ~EDIT: see what I mean?~
What's causing it, and how can I fix it?

Thanks :)