I'm going through the RNA-seq exercise at
at step 2 of mapping the reads where I've run tophat and have loaded
output files and the regGene tracks onto a new track browser. When I
in (to ~45kbp window), the accepted hits and one of the splice
tracks from tophat do not show data and instead show a crossed pattern
the browser no longer allows clicking and dragging to move the window.
This means that the Visualization tool is calculating an index. It
should eventually finish or you can choose another view (dense or
histogram). That said, this tool is under active development, and if
would like to share a link to the visualization, we can take a look to
see if this is a known or not.