Please help; re Sundial glitch

[Classickitten]

Hi.

I completed the campaign game in ZT2 that gave me the Sundial clock, however, when I go to click on it in gameplay it just comes up as a brown and green pointy glitchy mess which sometimes I can place and it resembles the same thing on the ground.

Recently, whenever I select the Sundial it makes my entire game crash and takes me back to my desktop, the whole ZT game shut down.

Please help. Has anyone else encountered this and how can I get round? It's so annoying :s

Thanks.