How-To Geek

This happened only recently and I haven't done anything new. I close the lid of the laptop (settings instruction is not to do anything when the lid is closed) and when I open it again, the desktop icons have re-sized themselves into a very large icons. This doesn't always happen but enough times to be irritating. Any ideas how I can "lock" in the size and position of the desktop icons? Right-click does not give me the options

Are they set as Classic icons ?

Yes, I have set it to small icons. It's on classic "Aero" view. But it just occasionally goes bananas. Doesn't happen on my HP laptop which also uses Windows 7. Just my Acer laptop. Not only are the icons large - they are huge as if they had been set to optimize for blindness. And no, I did not set it to optimize for blindness. It didn't always behave that way but I cannot think of what I did that was different at around the time this happened. It is only when I close the lid. It does not happen if I re-start or if I turn off the computer altogether. Come to think of it, I did instal the program folder icons at around that time but I did not use the program for any of my desktop icons. At first it was funny but it is now getting very irritating.