Don't know if there is a way to fix this, but whenever configure is run the first time i need to specify full paths like this: configure --prefix=/usr/kde/3.5 --with-qt-dir=/usr/lib/qt/3 I assume, that this is whenever a distribution (in this case Gentoo) has the libraries in a non-standard-directory, i could include a number of combinations, but in the long run, wouldn't that slow down the lengthy configure additionally? About your problem with no more overlay-mode, i had a conversation about this with someone else, and it turned out he uses the "latest NVidia-Drivers" and this is the problem. These drivers do (no longer???) support DGA and dga ist required to detect the framebuffer-adress, at least all programs i know of use DGA to do so. This is, that v4l-conf is used to set the framebuffer-adress for any overlay- displaying software and it complains about missing DGA-extension. Is there a proposal that DGA is a depricated feature or how can this happen? (It turned out, that xawtv does an automatic fallback to xv-mode in such cases, so it is not that obvious sometimes.) You can test this problem by running v4l-conf manually in a console. (Eventually your v4l-conf binary is not suid-root, this is another cause for no overlay been shown when kvdr run as non-root user). - Note: There will soon be another release for kvdr which will print this DGA- error and fix some problems i introduced accidently with the new feature.