No you're not missing anything, you've uncovered a bug specific to IE. The fix requires a change to the file /prestohub/jsapi/mashlet.js line 841 should be changed from :
ht = this.height;
to:
ht = this.height || "";
This bug has now been reported on our internal JIRA system (REAP-13636) a fix has been committed and will be included in the next release of Presto.


I created a mashboard using the "desktop" layout option. I added an app that renders a line chart to the mashboard. The chart renders in the mashboard editor but if I right click on the workspace name and choose "Open in new window", an empty outline of the app window is displayed - no data - no chart - no error. The same when trying to load this workspace remotely. All security is correct. I have dubugging on and can see the commands being issued to load the data, but nothing renders.
I can take the exact same app and add it to a mashboard using the "column" layout option, and everything works as expected - locally and remotely.
I am running Presto 3.1.1 on Windows 2008 R2 64 bit. I have tried to view the mashboard using both IE7 and IE8.
What am I missing?