Same as the title above. I bought myself a second monitor so I can multitask and do other things while gaming but when I play Fallout 3 through the GOG service it refuses to let my mouse go into the second monitor. I know with Steam you can press shift + tab to allow you to do this. Is there any type of workaround or fix that will allow me to do the same thing with GOG?

Making Fallout 3 work with multi monitor is a pain in the ass, there are mods and prgrams you could use but still it's a mess.