Cannot fully open the laptop.

Hello everyone,

I have a HP DV7-6b30eb which is seriously overheating and i suspect the thermal paste needs replacing. The problem is i get stuck when opening the machine. I have removed all the screws on the bottom half of the machine and it looks like i have to remove the palm rest by lifting it up. It lifts up everywhere except at 2 points. In the zone of the R,4 and 5 keys and between the O,9 and 0. When i lift up the palm rest to the point where there is tension on these points i can see inside a bit and it looks like the points where it wont lift are see through plastic of some kind.I have tried moving it in every possible direction in the hope it would un-click, but no joy. I cant find a disassembly layout specific to my laptop on-line.

Please help! Thank you!