Remove photo caption on mousover?

Hello everyone,

I am almost done building my site, however when I started refining it, I found that the photo captions are quite distracting when they appear on mousover. They would not be if they were small, but I make detailed descriptions about every work including mentioning which paper is better and so forth.

Any CSS code that can disable these enormous pop-up captions? Or alternatively, make a photo description separately from the caption?

Thanks in advance

[added later] terribly sorry for posting it in the main support forum instead of customization, had too many tabs open and made a mistake