Spell checking on Notes causes application to lock up

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create a new mind map
2. Create a new sub-topic
3. Generate 25 paragraphs of lipsum data from www.lipsum.com and add it into 
the sub-topic note.

What is the expected output?
- Smooth scrolling 
- application should not lock up.

What do you see instead?
- The notes editor should be smooth when scrolling and should not hang after 
the first few lines being scrolled down.

What version of the product are you using? On what operating system?
- XMind 3.1.1 
- Linux: Ubuntu 10.04 (Lucid Lynx)

Please provide any additional information below.
- Application memory sometimes doubles when scrolling (~140MiB-260MiB)
- CPU usage hovers between 90%-100% while opening a sub-topic note;
- Time to complete scroll ~3m31s, sometimes longer;
- Smooth scrolling and lock up disappears when spell checking has been disabled 
(BTW Spell checking seems to disable/enable after restarting the application)
- Screenshot and Lipsum xmind map attached (SHA1SUM: 
281631357b0fb0406e19ac1e01509e2a203d5e8e)

Original issue reported on code.google.com by starni...@gmail.com on 11 Aug 2010 at 1:18

Attachments:

• bug-report.zip

[GoogleCodeExporter]

Original comment by stephen0...@gmail.com on 21 Sep 2010 at 8:22

• Changed state: Accepted

[GoogleCodeExporter]

I have the same experience with 
xmind-portable-3.2.0.201008260040/XMind_Linux_64bit

Original comment by nesn...@gmail.com on 12 Oct 2010 at 6:20