Normally, I don't use walkthroughs for games (really, I seldom have the need), but I am genuinely lost in Saira. Puzzle games such as these would be no sweat for me but for some reason I am stuck. So I decided to check GameFaqs for a walkthrough, and I found one, to my delight. The only problem is that I can't use the Steam overlay.

The problem is, the overlay keeps flashing and glitching, that it's impossible to read anything without getting nauseous. The browser window would get shoved, between these "flashes" to the upper left corner of the screen, and back to the center, leaving the window too small to read anything inside.

Can anyone please tell me how to fix this? I'll provide necessary information as it is needed.
Thanks in advance.