At last! After hours of trying different gallery plugins, I found that mavik Thumbnails is a nice simple plugin that simply does what I simply want to do - throw up a larger image in a lightbox if I have resized it. Brilliant!

With it enabled you add your picture to your content normally, resize it from the original, change the default alt text (usually picked up from the file name) to what you want the viewer to read when they click on the picture, and save.

Set and forget! Easy! Thanks!

Does the job and, best of all, it is easy to modify the look from within the module. The tooltips are helpful. Integrates easily into my RocketTheme template and displays smoothly for me in in Firefox and Safari but is slightly jerky in Internet Explorer - but not bad enough to make me not to want to use it. I guess it's an IE problem. One day MS will get it right...

I just wanted something quick and simple to show an enlarged map when people click on it. I'm using a mootools javascript enabled theme but the mootools plugin I was trying to use previously threw up conflict errors in IE and I spent a lot of time trying to fix them. Switching to this non-mootools plugin solved the problem immediately.

I think a previous reviewer asked about changing the popup background colour from black - you can simply do this by editing the fbox_bg properties in the fbox_css.css file.