em client 7 crashes

Just upgraded from eM 6 to eM 7. It now constantly crashes. Below is the Error Code produced after a crash.

Need product support.

eM Client (7.0.27943.0)Windows: Microsoft Windows NT 6.1.7601 Service Pack 1, Framework: 4.0.30319.42000
The following error has occurred:
System.OutOfMemoryException: Exception of type ‘System.OutOfMemoryException’ was thrown.
   at System.Collections.Generic.List1.set\_Capacity(Int32 value)    at System.Collections.Generic.List1.EnsureCapacity(Int32 min)
   at System.Collections.Generic.List1.Add(T item)    at MailClient.Storage.Data.DbRepository1.FindOids(QueryCondition condition, CancellationToken cancellationToken, SortField[] sortKeys)
   at MailClient.Storage.Mail.Data.DbMailRepository.MailClient.Storage.Data.IRepository<mailclient.storage.mail.data.iconversationrepositoryitem>.FindOids(QueryCondition condition, CancellationToken cancellationToken, SortField[] sortKeys)
at MailClient.Storage.Views.ItemCollectionView2..ctor(Folder folder, ItemCollection2 itemCollection, IUIDispatcher dispatcher, CancellationToken cancellationToken, SortField[] sortFields)
at MailClient.Storage.Application.Folder.CreateConversationView(IUIDispatcher dispatcher, CancellationToken cancellationToken, SortField[] sortFields)
at MailClient.Storage.Application.AggregatedViewProvider.CreateConversationView(IUIDispatcher dispatcher, CancellationToken cancellationToken, SortField[] sortFields)
at MailClient.Storage.Application.Folder.CreateConversationView(IUIDispatcher dispatcher, CancellationToken cancellationToken, SortField[] sortFields)
at MailClient.UI.Controls.controlConversations.MailItemBehaviour.CreateView(IViewProvider viewProvider, IUIDispatcher dispatcher, CancellationToken cancellationToken, SortField[] sortFields)
at MailClient.UI.Controls.controlItemList`2.<>c DisplayClass173_0.b 0(Object )
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()</mailclient.storage.mail.data.iconversationrepositoryitem>

Hi Tad,

have you by any chance tried to send too big attachment or erase large amount of data within the eM Client?