I haven't experienced this and my site is both indexed in Google and has been assigned a page-rank too. Have you signed up to the Google Webmaster Tools and submitted all the details for your site, this could help speed up the process. However, the indexing works by following links, so the fastest way to get your site found by Google and other search engines is to get some inbound links to your site, however, don't be tempted to use a URL directory and link sharing schemes as it is possible they can do more harm than good.