So I recently got into the SH series, and after completing 1, I decided to pick up 2. It's running quite well, save for one problem: some enemies and objects are invisible. Examples of items that are invisible:

Patient Demon
Mannequin
Pyramid Head's helmet
James' eyes
Keys

It's still very playable with aid of a guide, but rather annoying. Is there a fix? I *am* running on very outdated hardware, but I do meet the minimum requirements.