Computer CD/DVD drive not reading disks properly???

[~Axis~]

Starting a few days ago, the CD/DVD drive on my laptop doesnt read disks as normal. I pop in a disk and close it and I wait until the loading icon on the mouse stops and when I double click the drive, it tells me it has no disk. If I make my pc sleep and then turn it on again, the CD loads properly as if nothing happened. I have to do this evertime I want to load a disk. I searched the the internet and tried everything I could and even tried a system restore but to no avail. Seriously. WTF is happening??? I didnt install any software for quite sometime. I remember the last time it worked properly is when I inserted a DVD movie and after watching it, shut it down. The next time I turned the pc on, as loading screen for windows was on, I took the disk out. Please help.