There's a few things broken with my unity installation

I’m unsure about where to put this but here goes:

My unity and Monodevelop are not working correctly. For example I must use the “Visual Design” perspective just to see my code, they are absent in my other perspectives! I think I must have exited out of the source code browser at some point, but the problem is there doesn’t appear to be a tab option to restore it!

Monodevelop just isn’t recognizing errors either. I can run a build, or a clean + rebuild, and only Unity flags an error. Sometimes simply typing something like: "MouseFlightGUIScript.transform.localPosition = yada yada; and then building causes mono to crash (I forgot to specify a variable in this line of code, but that shouldn’t cause mono to crash!)!

This laptop has a few issues, of which I don’t know what the cause could be or how to fix them. I’ve run CCleaner to fix the registry yet weird stuff keeps happening. Its 3 years old now, but I treat it good and it shouldn’t be having these problems imo, though I feel lucky it hasn’t kicked the bucket yet!

However NEVER use your laptops/notebooks on carpet or let it sit on a fiberous surface like your bedcovers people, the heat will reduce your device’s lifespan!

Have you tried using the Assets/Sync Monodevelop menu item to force Unity to rebuild the solution and load Monodevelop for you?

Yep. I tried that at your suggestion, and there still isn’t a source code tab under the default view. Not so sure about the other problems because they seem to crop up at their own volition (ie. unpredictably) and I cannot reproduce them…