Speccy 1.17.340 (64 bit) reports wrong amount of VRAM

Speccy 1.17.340 reports the following about my built-in Intel G45/G43 graphics processor:

Intel® G45/G43 Express Chipset

Memory 4294967102 MB

Memory type 2

Driver version 8.15.10.2302

The processor, which I had to activate yesterday after my external video processor died, only has a measly 128MB shared RAM to work with, as far as I know.

The system has a total of 8gb RAM.