Hi,
<div><br></div><div>I&#39;m going through the RNA-seq exercise at <a href="http://main.g2.bx.psu.edu/u/jeremy/p/galaxy-rna-seq-analysis-exercise">http://main.g2.bx.psu.edu/u/jeremy/p/galaxy-rna-seq-analysis-exercise</a>.  I&#39;m at step 2 of mapping the reads where I&#39;ve run tophat and have loaded the output files and the regGene tracks onto a new track browser.  When I zoom in (to ~45kbp window), the accepted hits and one of the splice junction tracks from tophat do not show data and instead show a crossed pattern and the browser no longer allows clicking and dragging to move the window.  Please advise.</div>

<div><br>Cheers,<br>Steve</div>