Minecraft Forums

My son’s computer (he got is yesterday for Christmas) is a
Dell
Windows 7 Professional
Service Pack 1
Intel Pentium CPU 3.40 GHz
4 GB Ram
64 bit Operating System
Graphics card AMD Radeon HD 5450 with updated/current driver
Java 7 Update 45

After 2-5 minutes of playing minecraft the screen freezes/locks up

When I do a control-Alt-Del

I see

“Java ™ Platform SE binary is not responding”

Description:
A problem caused this program to stop interacting with Windows.

Problem signature:
Problem Event Name: AppHangB1
Application Name: javaw.exe
Application Version: 7.0.450.18
Application Timestamp: 525404d7
Hang Signature: 34d0
Hang Type: 0
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Hang Signature 1: 34d0cae3672fb8aa70999b970dbacb9a
Additional Hang Signature 2: f24a
Additional Hang Signature 3: f24a5164e654268a014e811088d45cad
Additional Hang Signature 4: 34d0
Additional Hang Signature 5: 34d0cae3672fb8aa70999b970dbacb9a
Additional Hang Signature 6: f24a
Additional Hang Signature 7: f24a5164e654268a014e811088d45cad

My daughter’s identical system running with no problems.

How can I fix this problem? Please help!!!

More information: It only happens when he tries to play in a public server. It DOES NOT happen when he plays as a single.