I have tested with Safari Version 3.2.1 (5525.27.1) and iCab 4.5.0 on a 733 MHz G4 with OS X 10.5.6 but I doubt that it is restricted to this hardware/software. WebKit has an annoying habit of using an earlier window size and position for target=_blank etc links following a JavaScript change of size or position. The page at http://links.open.ac.uk/ uses <base target="_blank"> but once JavaScript has been used to alter window size or position Sari and iCab stop inheriting size/position for its links. Safari appears to use window parameters from an earlier 'session'. This is totally repeatable. To test go to javascript:moveTo(10,10);resizeTo(1000,700) and then hit one of the links at http://links.open.ac.uk/ - restart the browser and try the same link again without first using JavaScript to position or resize the window. Facilities and information at the following may be helpful: http://links.open.ac.uk/window/ http://www.macosxhints.com/article.php?story=20090421162146583